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L. J AROSSON. PRINTING BLOCK FOR PRINTING FABRIGS.

No. 11,954. Patented Nov. 1-4, 1854.

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Fifi] LEON JAROSSON, OF JERSEY CITY, ANELW JERSEY.

METHOD or GONSTRUGTING rnin'rrne-nnocxs;

Specification of Letters Patent No. 11,954, dated November 14, 1854.

To all whom it may concern:

Be it known that I, LEON JAROSSON, formerly of Lisle, France, but now ofJersey City, New Jersey, have invented an Improvement in the Method ofMaking Printing-Blocks for Printing Fabrics, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, making part of this specification, in whichFigure 1, represents the figure or design delineated; Fig. 2, theprinting face for printing the ground and with the figure cut out; Fig.3, represents the block out out of Fig. 2, to print one part of thefigure; Fig. 4, another figure cut out of Fig. 3; Figs. 5, 6 and 7,represent Figs. 2, 3 and 4 as secured to suitable blocks; Fig. 8,represents a face view; and Fig. 9, an edge view of a block with adifferent figure to be produced at one impression.

In making printing blocks for what is known as block printing, the modeheretofore and now practiced is to produce the figure required in reliefby cutting the substance of a solid block all around the figure thusleft in relief, the operation being the reverse of engraving, in whichthe figure to be printed is in intaglio, that is cut in below thesurface. This method of producing printing blocks is attended with greatlabor, requires great attention, and, as a consequence, is expensive.

The object of my invention is to reduce the cost of producing printingblocks, and consists in cutting out the figures required in whole or insections, by means of a saw or other instrument, from thin plates offelt (prepared according to a process for which I have made separateapplication for Letters Patent) or wood or other suitable substance ofthe thickness of the intended or required relief, and then securing themby glue, cement or other suitable means to the face of a block of therequired size for printing.

I take a plate of prepared felt, or wood, or other suitable substance ofa thickness equal to the required relief of the figures and of uniformthickness. On one surface of this I draw the design or figure requiredas at Fig. 1, and by means of a fine and very narrow saw, or othersuitable instrument, I out along the lines of the figure as at a, Fig.1, until I have cut out the part b. This forms the surface for printingthe ground as represented by Fig. 2, and also the surface Fig.

3 for printing the figure c of a different color. I then out along theline d and thus separate the surface Fig. 4 for printing, with a thirdcolor, the figure 6 within the figure 0. These several pieces being cutthe one out of the other in succession, must necessarily correspond inconfiguration minus the thickness cut away by the saw or otherinstrument. They are then properly arranged in place on the surfaces ofblocks f, g, h, of suitable size and thickness for block printing andthere secured with glue, cement or other suitable means for working inthe process of printing the successive colors. It is only necessary tosecure these several figures in proper positions on their several blocksto insure the printing of the successive colors in their proper places,for Fig. 3 being cut out of Fig. 2 will print on that part of the clothwhich will not be touched by Fig. 2; and Fig. 4 being cut out of Fig. 3will print where Figs. 2 and 3 will not touch, the thickness removed bythe saw or other instrument being about equal to the spread of thecolors at each impression.

Fig. 8 represents an entirely different design delineated on the surfaceof a plate of prepared felt, wood or other suitable substance of therequired thickness. With a fine saw or other instrument I cut all alongthe lines of the design, and if the figure is to be printed on a fabricof the color of the intended ground, I take the pieces marked 2' andsecure them to the face of a suitable block j, Fig. 9, and printtherewith, and if the ground is also to be printed, I secure the piece70 to another block in like manner, and first print the design with Fig.8 and then print the ground all around the design as in the firstexample. In this way blocks for printing the most intricate and delicatedesigns can be produced at much less cost than by any other modeheretofore known.

I am aware that letters and other characters have been cut out of sheetsof felt or other substance and then secured to the surface of ablock-and I, do not therefore claim broadly the cutting a character outof a sheet or plate of the thickness of the intended relief; but

What I do claim as my invention in the improvement of block printing, is

Cutting the several parts of the design, or

other, from a plate or sheet of prepared felt,

wood or other suitable substance of the the design and ground, the oneout of the thickness of; the required relief, and then' securing" theparts to the surface of blocks by means of cement, glue or othersuitable means substantially as 'specifiedg'by means of which I amenabled greatly to reduce the cost of producing the printing blocks;for" by the one act of cutting I produce twoprinting surfaces, to printwithdifi'ernt colors, and in that proportion Whatever may be" the'number o'f colorsof theintended de- 10 sign, andby which alsdI insurethe exact fit'of the several blocks for printing the 'severalcolors' asspecified.

LEON JAROSSON.

